Treb, using your code, the program will run, but now I have a bigger problem. The program is meant to change the colors of the vertices of a triangle, but now it simply displays the triangle and the colors remain constant. Here's the code:
// include the basic windows header files and the Direct3D header file#include <windows.h>#include <windowsx.h>#include <d3d9.h>// define the screen resolution and keyboard macros#define SCREEN_WIDTH 1024#define SCREEN_HEIGHT 768#define KEY_DOWN( vk_code ) ( ( GetAsyncKeyState( vk_code ) & 0x8000 ) ? 1 : 0 )#define KEY_UP( vk_code ) ( ( GetAsyncKeyState( vk_code ) & 0x8000 ) ? 0 : 1 )// include the Direct3D Library file#pragma comment ( lib, "d3d9.lib" )// global declarationsLPDIRECT3D9 d3d; // the pointer to our Direct3D interfaceLPDIRECT3DDEVICE9 d3ddev; // the pointer to the device classLPDIRECT3DVERTEXBUFFER9 t_buffer = NULL; // the pointer to the vertex buffer// function prototypesvoid initD3D( HWND hWnd ); // sets up and initializes Direct3Dvoid render_frame( void ); // renders a single framevoid cleanD3D( void ); // closes Direct3D and releases memoryvoid init_graphics( void ); // 3D declarationsstruct CUSTOMVERTEX { FLOAT X, Y, Z, RHW; DWORD COLOR; };#define CUSTOMFVF ( D3DFVF_XYZRHW | D3DFVF_DIFFUSE )size_t elements = 3;struct COLOR{ DWORD R, G, B; bool isFadingRed, isFadingGreen, isFadingBlue;};struct verticies{ CUSTOMVERTEX data[3];};void switch_color( COLOR colors[3] ){ // alter colors[0] if( colors[0].isFadingRed ) { colors[0].isFadingRed = !colors[0].isFadingRed; colors[0].isFadingGreen = !colors[0].isFadingGreen; } else if( colors[0].isFadingGreen ) { colors[0].isFadingGreen = !colors[0].isFadingGreen; colors[0].isFadingBlue = !colors[0].isFadingBlue; } else { colors[0].isFadingBlue = !colors[0].isFadingBlue; colors[0].isFadingRed = !colors[0].isFadingRed; } // alter colors[1] if( colors[1].isFadingRed ) { colors[1].isFadingRed = !colors[1].isFadingRed; colors[1].isFadingGreen = !colors[1].isFadingGreen; } else if( colors[1].isFadingGreen ) { colors[1].isFadingGreen = !colors[1].isFadingGreen; colors[1].isFadingBlue = !colors[1].isFadingBlue; } else { colors[1].isFadingBlue = !colors[1].isFadingBlue; colors[1].isFadingRed = !colors[1].isFadingRed; } // alter colors[2] if( colors[2].isFadingRed ) { colors[2].isFadingRed = !colors[2].isFadingRed; colors[2].isFadingGreen = !colors[2].isFadingGreen; } else if( colors[2].isFadingGreen ) { colors[2].isFadingGreen = !colors[2].isFadingGreen; colors[2].isFadingBlue = !colors[2].isFadingBlue; } else { colors[2].isFadingBlue = !colors[2].isFadingBlue; colors[2].isFadingRed = !colors[2].isFadingRed; }}void update_verts( CUSTOMVERTEX * const verts, COLOR * const colors, const size_t elements ){ for( size_t i = 0; i < elements; i++ ) verts.COLOR = D3DCOLOR_XRGB( colors.R, colors.G, colors.B );}void graphics_loop( CUSTOMVERTEX verts[3], COLOR colors[3], short &count ){ // alter colors[0] if( colors[0].isFadingRed ) { colors[0].R++; colors[0].B--; } else if( colors[0].isFadingGreen ) { colors[0].G++; colors[0].R--; } else { colors[0].B++; colors[0].G--; } // alter colors[1] if( colors[1].isFadingRed ) { colors[1].R++; colors[1].B--; } else if( colors[1].isFadingGreen ) { colors[1].G++; colors[1].R--; } else { colors[1].B++; colors[1].G--; } // alter colors[2] if( colors[2].isFadingRed ) { colors[2].R++; colors[2].B--; } else if( colors[2].isFadingGreen ) { colors[2].G++; colors[2].R--; } else { colors[2].B++; colors[2].G--; } // update verts array update_verts( verts, colors, elements ); if( count == 255 ) { switch_color( colors ); count = 0; } VOID* pVoid; // a void pointer // lock t_buffer and load the vertices into it t_buffer->Lock( 0, 0, ( void** )&pVoid, 0 ); memcpy( pVoid, verts, sizeof( verts ) ); t_buffer->Unlock(); return;}// the WindowProc function prototypeLRESULT CALLBACK WindowProc( HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam );// the entry point for any Windows programint WINAPI WinMain( HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow ){ HWND hWnd; WNDCLASSEX wc; ZeroMemory( &wc, sizeof( WNDCLASSEX ) ); wc.cbSize = sizeof( WNDCLASSEX ); wc.style = CS_HREDRAW | CS_VREDRAW; wc.lpfnWndProc = ( WNDPROC )WindowProc; wc.hInstance = hInstance; wc.hCursor = LoadCursor( NULL, IDC_ARROW ); // wc.hbrBackground = ( HBRUSH )COLOR_WINDOW; // not needed any more wc.lpszClassName = L"WindowClass"; RegisterClassEx( &wc ); hWnd = CreateWindowEx( NULL, L"WindowClass", L"Our Direct3D Program", WS_EX_TOPMOST | WS_POPUP, // fullscreen values 0, 0, // the starting x and y positions should be 0 SCREEN_WIDTH, SCREEN_HEIGHT, // set the window to 640 x 480 NULL, NULL, hInstance, NULL ); ShowWindow( hWnd, nCmdShow ); // set up and initialize Direct3D initD3D( hWnd ); short count = 0; COLOR t_colors[] = { { 0, 0, 255, true, false, false }, { 0, 255, 0, false, true, false }, { 255, 0, 0, false, false, true }, }; CUSTOMVERTEX t_vert[] = { { 320.0f, 50.0f, 0.5f, 1.0f, D3DCOLOR_XRGB( 0, 0, 255 ), }, { 520.0f, 400.0f, 0.5f, 1.0f, D3DCOLOR_XRGB( 0, 255, 0 ), }, { 120.0f, 400.0f, 0.5f, 1.0f, D3DCOLOR_XRGB( 255, 0, 0 ), }, }; // enter the main loop: MSG msg; while( TRUE ) { DWORD starting_point = GetTickCount(); if ( PeekMessage( &msg, NULL, 0, 0, PM_REMOVE ) ) { if ( msg.message == WM_QUIT ) break; TranslateMessage( &msg ); DispatchMessage( &msg ); } graphics_loop( t_vert, t_colors, count ); render_frame(); // check the 'escape' key if( KEY_DOWN( VK_ESCAPE ) ) PostMessage( hWnd, WM_DESTROY, 0, 0 ); while ( ( GetTickCount() - starting_point ) < 25 ); } // clean up DirectX and COM cleanD3D(); return msg.wParam;}// this is the main message handler for the programLRESULT CALLBACK WindowProc( HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam ){ switch( message ) { case WM_DESTROY: { PostQuitMessage( 0 ); return 0; } break; } return DefWindowProc ( hWnd, message, wParam, lParam );}// this function initializes and prepares Direct3D for usevoid initD3D( HWND hWnd ){ d3d = Direct3DCreate9( D3D_SDK_VERSION ); D3DPRESENT_PARAMETERS d3dpp; ZeroMemory( &d3dpp, sizeof( d3dpp ) ); d3dpp.Windowed = FALSE; d3dpp.SwapEffect = D3DSWAPEFFECT_DISCARD; d3dpp.hDeviceWindow = hWnd; d3dpp.BackBufferFormat = D3DFMT_X8R8G8B8; d3dpp.BackBufferWidth = SCREEN_WIDTH; d3dpp.BackBufferHeight = SCREEN_HEIGHT; // create a device class using this information and the info from the d3dpp stuct d3d->CreateDevice( D3DADAPTER_DEFAULT, D3DDEVTYPE_HAL, hWnd, D3DCREATE_SOFTWARE_VERTEXPROCESSING, &d3dpp, &d3ddev ); init_graphics(); return;}// this is the function used to render a single framevoid render_frame( void ){ d3ddev->Clear( 0, NULL, D3DCLEAR_TARGET, D3DCOLOR_XRGB( 0, 0, 0 ), 1.0f, 0 ); d3ddev->BeginScene(); // select which vertex format we are using d3ddev->SetFVF( CUSTOMFVF ); // select the vertex buffer to display d3ddev->SetStreamSource( 0, t_buffer, 0, sizeof( CUSTOMVERTEX ) ); // copy the vertex buffer to the back buffer d3ddev->DrawPrimitive( D3DPT_TRIANGLELIST, 0, 1 ); d3ddev->EndScene(); d3ddev->Present( NULL, NULL, NULL, NULL ); return;}// this is the function that cleans up Direct3D and COMvoid cleanD3D( void ){ t_buffer->Release(); // close and release the vertex buffer d3ddev->Release(); // close and release the 3D device d3d->Release(); // close and release Direct3D return;}void init_graphics(){ CUSTOMVERTEX t_vert[] = { { 320.0f, 50.0f, 0.5f, 1.0f, D3DCOLOR_XRGB( 0, 0, 255 ), }, { 520.0f, 400.0f, 0.5f, 1.0f, D3DCOLOR_XRGB( 0, 255, 0 ), }, { 120.0f, 400.0f, 0.5f, 1.0f, D3DCOLOR_XRGB( 255, 0, 0 ), }, }; // create a vertex buffer interface called t_buffer d3ddev->CreateVertexBuffer( 3*sizeof( CUSTOMVERTEX ), 0, CUSTOMFVF, D3DPOOL_MANAGED, &t_buffer, NULL ); VOID* pVoid; // a void pointer // lock t_buffer and load the vertices into it t_buffer->Lock( 0, 0, ( void** )&pVoid, 0 ); memcpy( pVoid, t_vert, sizeof( t_vert ) ); t_buffer->Unlock(); return;}
